Valve.



E. BISHOP.

VALVE.

APPLICATION FILED 001.13, 1911.

' Patented June 3, 1913.

WITNESSES is regulate the supply of steam flowing there- HED s'r TEs w QFEIGE. I

EDWARD Eisner, o ExcE s'Io'n, ARKANSAS,-

.VALVE,

inseam.

To all whom it may concern:

Be it known that I, EnwAnn Bisnon, a citizen of the United States, anal a resident of Excelsior, in the county of Sebastian and,

State of Arkansas, have invented it new and: lin proved Valve, of which the follow ng is a full, clear, and exact description,

My-invention relates to valves for eon- (iuits, and particularly to .valves intended to be located in steam pipes to shut oii' and through to 21 point where the same ismmle to do its work; and it comprises a novel construction of this sort wherein the valve head while being moved by. the stem; atthe seine time has a'movement independently;

thereof, and wherein the stem is protected against the action ofthe stemn to guard against wear and corrosion,

Reference is'to he had to the accompzinv" ing drawings forming a .part of this specifie tion, in whieh'the same characters-f reference indicate the same parts in all the views I,

Figure 1 1S :1 longitudinal section of one.

term or iny iinproved valve; Fig. 2 is a top plan thereof with the operating hand-wheel removed and: l igkifl. is some elevation :of the end ofthe operating stexn'whicheng'ages the valve stem.

lln the drawings the numeral 1 v a who eesing'having-a partition 2. shapedto provide. in-opening sol-rounded by a beveletl sent 3,011 which rests the valvehead 42' when. the vziive is inclosed position; This flit-ml 4 rotatztbly. connected to'the valve,

stem 5 by heing boretl- (nit on top,-ns shown in i iof. i, to receive a flange (Elonthe lower encl of the valve stem 15, the bore being tlnezitieti to engage with, threads on whingiingg nut'l', which is screwed into the-head 4 around. the valve. stem 5, and secures the hese thereon. The head 4, however, isnot seemed on so as to prevent rotation, butis, carried open the end tof -the'va'l've 18% as to move up and; down therewithn mineral S'represinits a boss. projeet; ,tersiily from the valve casinggthis'hossi gthreetled inteinziliy to reoeive a, not

' bonnet ii, with whichthe valvestem'ti has.

,ii engagement,- es ehofwna't 10."'The1 the 'mlve stem 5" is lf'fidliwid 'iiii 3 nation 11, which, extends nto e ifififiSS'iiQ, whichis formed n the nonhis recess o3 bore i2 opening through Sp ecifieacion of Letters Patent, Application filed ocmbris, 1911.

indicates i. o ntheteot to give passage to th'e oper- PatentedJune 3, 1913. ISexia1 No.654, 470.

n'tinig-stem and menus for holding'the operating ste n in pro er relation to the valve stein, -flhefsqnere po1'tion '11 at the upper end of the valve stem 5 fits into a bore 14 of corresponding shape, in the thickened lower end 13 of the operating stem, which is indiezited at 18. This thickened portion 13 of the operatingstem is provided with a ClI- eumferential collar 15 {\(lJtlCEXlt its lower e31 tremit'y, the upperside of this collar being screwed infer out' towidjust the tension of the spring 1'6, ineny manner required. The

or giand 17 end iS'}')I0Vl(l8(l on its outer end witl'za polygonaLshnped section-to which is fitted a imn(l';w heel 19, by means of which the valve operated; This hendrwheel 1.9 secured by esnitable nut, and when-the some isturned, it of conrse turns the operating 'stem with The manner (if-operating the valve head 4 by thee-(instruction abovedescribed will be apparent. The spring'lG will keep, the valve operating stem 18 pressecl'up a ainst the lower endof the gland or hot 1?, and the tension of this spring can be regulated at. will by screwing the gland 17 in or-out of operating'stem 18 extends through the nut the-bonnet 9. When the hend-wheel 1 9 -is turned to'turn the'valve operating stem 18, the valve stem 5 will be turned with it. The stem 18, however, willno't'move longitudi-- holly, but when the valve stem '5 is turned "it will move upward or downward, owing to its screw-threaded engagement with the net or bonnet 9,'and thiswill cause the valve hea 4 to'come into-open or closed position. It will be understood of coui'se that the re-' 'dueed portion not the valve stem 5 need not he squa re, but may be "of any polygonal shape! The valve head 4, as above stated, is 'loosenpon the'endof the valve stem to the iextentthat it isfree to rot' teth'ereon, and thus form.- a snug fit at a times with its seat, It will also be appeywt from the-con struction of the valve as shown in Fig. 1, that'the valve operating stem is protected "from the action of the steam, because the valve operating stem is so connected with the valve stem that the former is located entirely outside 'of the valve casing, and the liability of corrosion is practically nullified; At the same time, every advantage in the way of ready and easy operation and proper adjustment is obtained.

glhe construction shown in Figs. 1, 2 and 3-1s intended to illustrate how my improvements may be applied to valves of the common type that are now in use.

It will be noted that the operating stem can be taken off for repairs at any time.

merely by unscrewing the nut or gland 17,

after first screwing down the valve stem 5 to hold the valve head t to its seat; and this can be done without the flowing out or leaking of the steam from the casing l, and without going to the trouble of cutting off the supply of steam flowing through the supply pipe, by means of the valve at the out 'ance thereof, (not shown) or in some other way.

"lhe'advantage of the construction above described is the fact that no packing is neccssary to make the valve fit tight when mounted in position. The bonnet 9 is screwed home snugly enough to make packing bet-weeii it and the boss 8 unnecessary, and the beveled surface of the collar 15 provide a sutliciently tight fit betweenthe operating stern and the other parts which support the valve stem.

I wish to have it understood that I reserve to myself the right to make such small changes in the shape, size and arrangement of the parts as fairly fall within the scope and spirit-of my invention.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:

1. The combination of a valve bonnet, a valve stein in said bonnet and being of polygonal cross-section at its inner end, a gland engaging said bonnet and having a bore thcrethrough, an' operating stem received by said bore and extending into said bonnet, saidoperating stem having a bore corresponding with the cross-section of the inner end of the valve stem and receiving the same, and having a circumferential collar having one side abutting against the inner end of the gland, said bonnet having an internal shoulder, and a spring engaging said shoulder and said collar to hold said collar and the inner end of said gland inv engagement with each other.

each other and to move in unison when the operating stem is turned, the said gland having a conical surface, and the operating stem having a circumferential collar having a beveled surface fitting against the conical surface on the gland, said bonnet having an internal shoulder, and a spring engaging said shoulder and the said collar to hold the beveled surface of the collar and the end of the. gland in engagement with each other.

3. The combination of av valve bonnet having a bore therein, a valve stem entering said bore, a gland engaging said bonnet and having a bore therethrough, an operating stem received in said bore, the inner end of said valve stem and said operating stein being shaped to have sliding engagement with each other and to move in unison when the operating stem is turned, the operating stem having a collar to en a e the inner end of.

the gland, said bonnet having an internal shoulder, and a spring engaging said shoulder and said collar to hold the collar and the endof the gland in engagement with each other.

4. The combination of a valve bonnet having a bore therein, a valve stem entering the bonnet and having aport'ion which is polygonal in cross-section adjacent its inner end. a gland engaging the bonnet having a bore therein, an operating stein passing through said bore and having a bore'iu its inner end shaped to correspond with the cross-section of the inner end of the valve stem to enable the valve stem and the operating stem to have sliding engagement with each other and to rotate together when the operating stem is turned, the operating stein having a, circumferential. collar having one side beveled, the said gland having :1 correspond ingly-formed surface to receive said side, said bonnet. having an internal shoulder, and a spring engaging said shoulder and said collar to hold the collar and the gland in engagement with each other.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

EDVlZARD BISHOP. Witnesses:

G. W. SAmnRrinLn, CHESTER HOLLAND. 

